Hello,

I am trying to set up an LDT task as a prime for a follow-up task and I need the word/non-word segment to follow a specific order that was created outside of Inquisit. In short I don't want Inquisit to randomize the order or combination of that section. I am having a difficult time figuring out how to do this.

Sincerely,
Lawson

In essence, you enter the items and/or item numbers into the script in the predetermined order and then you simply set the respective <text> and/or <list> elements responsible for stimulus selection to sequential selection, i.e. /select = sequence.

Thank you for the feed back, but now I am receiving an error message ("The stimulustimes attribute specifies the stimulus presentation sequence for trials in terms of time in milliseconds") when I attempt to run the test trial.

<text ready>
/ items = ("*")
</text>


<trial ldtcategory>
/ stimulustimes = [0 = ready, 300 = list.ITEMS]
/ trialduration = 8400
/ validresponse = ("E", "I")
/beginresponsetime = 0
</trial>

I tried as a 300=ITEMS, 300=text.ITEMS (which went through without an error message for awhile but only the first item in the list appeared)

I think it is safe to say I am new with Inquisit.

Sincerely,
Lawson

It is impossible for me to tell you the reason for the error based on such a limited code snippet. At a minimum, you ought to include the code for the referenced elements, i.e. <list ITEMS> and/or <text ITEMS>. Given that, as you say, you are fairly new to Inquisit, giving the tutorials included in the documentation a look might be a good idea. That will definitely help you to better understand and modify any existing code.

That said, let's dissect things a little bit. In the original LDT script, <trial ldtcategory> displays a <text> stimulus called "category":

<trial ldtcategory>
/ stimulustimes = [0=ready; 700=category; 950=blank]
/ validresponse = ("E", "I")
/ correctresponse = ("I")
/beginresponsetime = 700
/ ontrialend = [
    list.catwords.insertitem(trial.ldtcategory.correct, 1);
    list.overallaccuracy.insertitem(trial.ldtcategory.correct, 1);
    if (trial.ldtcategory.correct) {
        list.catwords_correctRT.insertitem(trial.ldtcategory.latency, 1);
        list.overallRT.insertitem(trial.ldtcategory.latency, 1);
    };
]
</trial>

This is the <text category> element

<text category>
/ items = category
</text>

and it use the following items in <item category>:

<item category>
/ 1 = "category1"
/ 2 = "category2"
/ 3 = "category3"
/ 4 = "category4"
/ 5 = "category5"
/ 6 = "category6"
/ 7 = "category7"
/ 8 = "category8"
/ 9 = "category9"
/ 10 = "category10"
/ 11 = "category11"
/ 12 = "category12"
/ 13 = "category13"
</item>

Now, if you want those items to be sampled in a fixed order instead of randomly, you simply set <text category> to sequential selection:

<text category>
/ items = category
/ select = sequence
</text>

The item "category1" will then be displayed in the 1st instance of <trial ldtcategory>. The item "category2" will be displayed in the 2nd instance of <trial ldtcategory> and so forth.

Little bit of an embarrassment but I realized what the second issue was about 30 minutes ago. I was using the LDT template and I accidentally deleted something and saved it without realizing.

Sorry about that. I really do feel bad about that. Thank you for the help.

Sincerely,
Lawson